NCT03670043

Brief Summary

The overall goal is to explore the hypothesis that prebiotic fiber Psyllium will ameliorate diarrhea in African American men (AAM) with Type2 Diabetes Mellitus (T2D).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
29

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Mar 2019

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 11, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 13, 2018

Completed
6 months until next milestone

Study Start

First participant enrolled

March 19, 2019

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 15, 2020

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 15, 2021

Completed
Last Updated

September 10, 2021

Status Verified

September 1, 2021

Enrollment Period

1.6 years

First QC Date

September 11, 2018

Last Update Submit

September 1, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Birmingham Irritable Bowel Syndrome (IBS) Symptom Questionnaire

    This scale is based on symptoms that frequently occur in IBS cases, examines abdominal discomfort status, stool properties, and defecation feelings. The scale includes a total of 11 items, with 6 possible grades for each item that range from 0 points (never having this symptom) to 5 points (the symptom is always present). The total score is the sum of the scores for each item. The Total score is used. No "subscale" is used. Total range is minimum=0, maximum=55. The higher values represent a worse outcome.

    3 months

Study Arms (2)

Metformin ER

ACTIVE COMPARATOR

The subjects developing GI-related symptoms with metformin will be randomized to Metformin Extended Release (ER)

Drug: Metformin Extended Release Oral Tablet

Psyllium

EXPERIMENTAL

The subjects developing GI-related symptoms with metformin will be randomized to Psyllium

Drug: Psyllium powder

Interventions

To evaluate whether Psyllium will alleviate diarrhea

Psyllium

Metformin Extended Release Oral Tablet is standard of care for diarrhea in patients taking metformin

Metformin ER

Eligibility Criteria

Age20 Years - 70 Years
Sexmale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male (M)
  • African American (AA) race
  • Age 20-70 years
  • BMI 28-59 kg/m2
  • T2D
  • A1c 6.5 - 8.9%
  • eGFR =/\> 30
  • Drug-naïve or use Glipizide or newly started on Metformin (within 2 weeks).

You may not qualify if:

  • Chronic kidney disease stage 3b, 4 and 5 (eGFR \< 30)
  • Insulin use
  • Oral steroids use (inhalers and creams are allowed)
  • Antibiotic use within the last month
  • Artificial heart valves
  • Hospitalization for chronic condition within 6 months prior to the study
  • History, manifestations or medications of significant metabolic, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, urological, neurological, psychiatric/ psychological disorders, or social circumstances which in the opinion of the investigator would be expected to interfere with the study or increase risk to the subject.
  • Use of other antidiabetic drugs (except glipizide and metformin).
  • Acute or chronic metabolic acidosis, including diabetic ketoacidosis, with or without coma.
  • Previous severe allergic reaction to metformin hydrochloride, such as angioedema.
  • Previous Metformin intolerance causing significant diarrhea or GI-upset. Would not exclude participants who had history of mild diarrhea with metformin use.
  • Previous side effects that the subject feels were related to Metformin and the subject is not interested to re-try metformin.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jesse Brown VA Medical Center

Chicago, Illinois, 60612, United States

Location

Study Officials

  • Barengolts

    Jesse Brown VA Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief, Section of Endocrinology

Study Record Dates

First Submitted

September 11, 2018

First Posted

September 13, 2018

Study Start

March 19, 2019

Primary Completion

October 15, 2020

Study Completion

August 15, 2021

Last Updated

September 10, 2021

Record last verified: 2021-09

Data Sharing

IPD Sharing
Will share

Locations